Install Janus Webrtc Ubuntu Server 18.04.4

Ubuntu 18.04.4

Error

E: Encountered a section with no Package: header
E: Problem with MergeList /var/lib/apt/lists/repo.mongodb.org_apt_ubuntu_dists_bionic_mongodb-org_4.0_multiverse_binary-amd64_Packages
E: The package lists or status file could not be parsed or opened.